There are many way to celebrate your 70th birthday. You could sit down in front of a cake packed tight with flaming candles. You could go bowling with your buds wearing a T-shirt that says, "Over the hill--and picking up speed." Or you could help put together the most amazing, three-dimensional map of the universe ever created.
Brent Tully opted for door #3.
Tully, a cosmologist at the University of Hawaii's Institute for Astronomy, has probably done more than any other single living s